Amana Appliances/Amana Perfect Balance Touchmatic Washer ALW990EA

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Amana Domestic Washer Technical Information 120 V, 60 Hz Models ALW990EA*

PALW990EA*

•Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit. •Refer to Service Manual RS3100007 for detailed installation, operating, testing, troubleshooting, and disassembly instructions. •Refer to Parts Manual RP3100018 for part number information.

!

CAUTION

All safety information must be followed as provided in this Technical Sheet and in Service Manual RS3100007.

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to unit and discharge capacitor before servicing, unless testing requires it.

Models Power Source Voltage AC Amperage (Single Unit) Frequency Motor horsepower Receptacle Plug Dimensions Cabinet Height− overall Height of cabinet Width Depth Clearance− washer lid Weight Crated

April 2001

ALW990EA* 120 VAC 10 A 60 Hz 1/2 6-20R 6-20P

43” 36” 27” 28” 17 1/2” 193 lbs.

Models Wash cycles Water temperatures Water level Features Automatic balance system Self-cleaning lint filter Self-adjusting rear leveling legs 210 Agitation stroke Tri− Action wash system Fabric softener dispenser Extra rinse SofSound Quiet Pack End of cycle signal Motor speed Spin speed (revolutions per minute) Agitation speed (strokes per minute) High Medium Low

1

ALW990EA* Multiple 5 5 X X X X X X X X X 3 speed 710 / 473 rpm 69 spm 46 spm 35 spm

RT3100012 Rev. 1

Component Testing Information

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

Illustration 40097701

40082401

Component Mixing valve

Pressure switch

2 1 3

40035001

Lid switch− SPST

Test Procedure Measure resistance of terminals on each valve. Resistance across each valve ............. Do not disconnect the pressure hose from pressure switch to perform measurements. Measure resistance across the following terminals on the pressure switch: Terminal 1 to 2 ................................ Terminal 1 to 3 ................................

Brake pad kit

If washtub does not stop spinning within seven seconds after opening loading door. If brake pads make noises...................

40084501

Capacitor

40096301

Motor

40040301

Drain pump

Approximately 1000 Ω ± 10% Refer to wiring diagram/schematic for correct contacts. Air pressure that actuates switch is determined by the water level of the tub. Continuity (no pressure) Continuity (pressure)

Disconnect wire terminals from switch. Test terminals with switch closed....... Test terminals with switch open .........

R0000014

Results

Continuity Infinite

>1 Ω 1 MΩ

Replace all three brake pads. Apply a thin layer of silicone (26594P) on pads, see Service Bulletin “ASQ− 213− B”

Discharge Capacitors Remove wires from capacitor terminals and connect ohmmeter, set on highest resistance scale to terminals.

Between Terminals: Meter should momentarily deflect towards zero then return to over 5 MΩ . If no deflection occurs, or if continuous deflection occurs, replace capacitor.

Also check between each terminal and capacitor case. Type of motor: Three speed

Terminal to Case: Infinite resistance

Verify drain pump is not clogged or damaged.

Remove clog and verify proper operation.

See following section “Internal Motor Diagram and Schematic” for correct wiring contacts.

Replace drain pump if damaged. 40032701

Transmission assembly

Type of transmission: 710 rpm

Externally identical, must be identified by part number. If transmission locks-up, replace.

40053601

Drive belt

Type of drive belt: 710 rpm

Refer to “Parts Manual”, to verify which drive belt and pulley size is required.

There are two different types of pulley sizes as well.

RT3100012 Rev. 1

2

April 2001

Component Testing Information

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

40087002*

Overlay

* - Indicates color

REGULAR

WASH LARGE HEAVY

START

HOT

PERM PRESS KNITS

STOP CANCEL

SMALL LIGHT

SPIN ONLY

R I N S E / S P IN

WARM RINSE

EXTRA RINSE

DOUBLE WASH

SIGNAL VOLUME

DELAY START (0-24 HRS)

CYCLE ADVANCE

SOAK

SAVE CUSTOM SETTINGS

COLD

DELICATE HAND WASH

Illustration 40081801

40098701

Component Electronic control

Power Cord

FAVORITE CYCLE

Test Procedure See “Self - Diagnostic Routine” section for test procedures. Refer to “Service Manual” for detailed instruction. Measure resistance of wires.

Results

Continuity should be indicated on each wire. Verify polarity and grounding.

April 2001

3

RT3100012 Rev. 1

Internal Motor Diagram and Schematic

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

Three Speed Motors Continuity exists between switch terminal R and Black wire. Start Terminals

YES Manually depress actuator. Continuity broken between switch terminal R and Black wire. YES Continuity exists between switch terminal P and Blue wire.

High Speed Terminals

Medium/Low Speed Terminals

NO

Inoperative start switch. Replace switch.

NO

NO

YES Manually depress actuator. Continuity broken between switch terminal P and Blue wire. YES Continuity broken between switch terminal P and switch terminal V.

Inoperative high speed switch. Replace switch.

NO

NO

YES Manually depress actuator. Continuity exists between switch terminal P and switch terminal V. YES

NO

Inoperative medium/low speed switch. Replace switch.

Motor switch checks OK.

Start Winding

4-5 ohms between Brown wire and Red wire.

NO

Inoperative start winding. Replace motor.

NO

Inoperative high speed winding. Replace motor.

NO

Inoperative medium speed winding. Replace motor.

YES High Speed Winding

1-2 ohms between Blue wire and White/Black wire. YES

Medium Speed Winding

2-3 ohms between White/Violet wire and White/Black wire. YES

Low Speed Winding

Protector

2.5 ohms between White and Black wire and 3.5 ohms White and Orange wire. YES Continuity exists between Yellow wire and White wire.

NO

NO

Inoperative low speed winding. Replace motor.

Inoperative common lead. Replace motor.

YES All motor windings checks OK.

RT3100012 Rev. 1

4

April 2001

Internal Motor Diagram and Schematic

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

G BK V W-BK BU Y

W OR

R

Black

White Yellow

Blue

White/Black

RUN BK

V

BU

Y

W

W-BK

G

PLUG

START

OR

R

W/V

W/OR

K BL

6P MAIN

8P MAIN

PROT

WHT-BLK BLU

4P MAIN

WHITE YEL

AUX

Motor Assembly (three speed motor)

April 2001

5

RT3100012 Rev. 1

6

1 4

1 4

START

THERMISTOR IN WATER MIXING VALVE

H5

2

2

VLT BRN

WHT

4

4

1 1 3 3

6 6

MOTOR HIGH

SPIN AGITATE

LINE NEUT

5 5

6 6

9 9

DC COM

AUX L1

LID SW

FS1

7 7

MED

FS2

H4

8 8

LOW

2

2

HI AUX L1

1

1

HOT

3 3

4

4

COLD

H3

BLU

5

5

N.O.

11 9 7

RED/BLK WHT/ORG WHT/ORG

COM.

5

WHT/BLU

LID SWITCH

1

BLU/BLK

GROUND TO TOP

RECEPTACLE

3

GRY/BLK

RECEPTACLE

ORG

GRY

RED/YEL

2

2

MOTOR LOW

WHT/RED

PNK

PNK/BLK

ORG/BLK

GRN/YEL

GROUND TO MICROCOMPUTER CHASSIS

MACHINE NEUT

H1

3

3

MOTOR MED

MOTOR SWITCH

PNK/BLU

SWITCH

GRN/ YEL

GRY

GRN

GRY

PRESSURE

GRN/ YEL

GROUND TO TOP

8

4

5

7

8

4

5

7

12

6

12

11

6

10

1

2

3

9

11

10

1

2

3

9

GRN/ YEL

4

6

3

9

RED

4

6

1

POWER CORD

CAPACITOR

MOTOR

MIXING

GROUND TO CABINET

RIDGE OR TINNED TERMINAL = NEUTRAL

VLT

WHT

BRN

3

PNK

1

9

PNK/BLK

8

5

5 8

7

1

2

ORG

WHT/RED

BLK/PNK

7

1

YLW/BLK

BLU

ORG/BLK

2

GRN/YEL

RED/YEL

PLUG

RECEPTACLE

VALVE

HOT

RED

COLD

NATURAL

!

BLK

RT3100012 Rev. 1 GND

MICROCOMPUTER CONTROL

CONNECTION DIAGRAM

Wiring Diagram To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

WARNING

April 2001

Schematic

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

SCHEMATIC L1

N 120 VAC 60 HZ WATER TEMPERATURE SENSOR T

FS1

H5-1

H5-2 FS2

WATER TEMPERATURE REGULATION CIRCUIT CONTROLS RELAYS K5 & K6 BASED ON WATER TEMPERATURE SELECTION

HOT

H4-1 (HOT) K5

COLD H4-4 (COLD) K6

H4-5 (DC COM)

MIXING VALVE

H4-3 (AUX L1) H4-2 (HIGH) PRESSURE SWITCH SENSING CIRCUIT ALLOWS CONTROL TO TURN ON WATER RELAYS K5 & K6 BASED ON STATUS OF PRESSURE SWITCH CONTACTS

H4-7 (MED) H4-8 (LOW) PRESSURE SWITCH

H3-5 (MOTOR LOW) K7

H1-3 (MOTOR MED)

2X

8P-LOW LID SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAYS K1 IN AGITATE AND MOTOR RELAYS K1 & K3 IN SPIN.ONLY WHEN LID IS CLOSED AND START PAD IS PRESSED

W-OR 7

H3-4 (MOTOR HIGH) H1-2 (MOTOR SWITCH)

9

H1-1 (MOTOR START)

V

LINE NEUT.

4P-HIGH

BU

TP

CAPACITOR

W4

AUX 1 R

K3 K1

1

3 OR 7

H3-3 (AGITATE)

6P-MED

W-V

1X

K2

6

H3-1 (SPIN)

Y 8

SPIN AGIT W-BK

MACH NEUT.

H3-2 (MACHINE NEUTRAL)

3 SPEED MOTOR

H3-6 (LINE NEUTRAL) (LID SWITCH)

H4-9

H4-6 (AUX L1) CHASSIS GROUND LID SWITCH

April 2001

7

RT3100012 Rev. 1

Self - Diagnostic Routine

!

WARNING

To avoid risk of electrical shock, personal injury, or death, disconnect power to washer before servicing, unless testing requires it.

SELF-DIAGNOSTIC ROUTINE

TEMPERATURE REGULATING CIRCUITRY ROUTINE: THIS ROUTINE WILL ALLOW A CHECK OF THE TEMPERATURE REGULATING CIRCUITRY. ONCE THIS ROUTINE IS ENTERED, THE CONTROL WILL DISPLAY A CODE IN THE 2-DIGIT VFD DISPLAY INDICATING A TEMPERATURE OF THE WATER.

ENTRY: FOLLOW THE SEQUENCE GIVEN BELOW 1. MAKE SURE WASHER LID IS CLOSED. 2. START IN THE SLEEP MODE (DISPLAY COMPLETELY OFF).

SEQUENCE TO ENTER TEMPERATURE REGULATING CIRCUIT ROUTINE 1. START IN THE SLEEP MODE (DISPLAY COMPLETELY OFF) 2. PRESS DELAY START PAD AND HOLD. 3. NOW PRESS THE START PAD. 4. RELEASE BOTH PADS. 5. CONTROL NOW WILL DISPLAY THE AMBIENT TEMPERATURE OF THE THERMISTOR AS INDICATED IN THE TABLE BELOW. DISPLAY TEMP (±3°F) DISPLAY TEMP (±3°F)

3. PRESS THE SIGNAL VOLUME PAD AND HOLD. 4. NOW PRESS THE START PAD THEN RELEASE BOTH PADS WHEN SEQUENCE STARTS. 5. IF UNABLE TO START ROUTINE CHECK LID SWITCH.

OP 35 38 41 44 47 50 53 56 59 62 65 68 71 74 77 80

EXIT: DO ANY OF THE FOLLOWING. 1. PRESS ANY PAD. 2. OPEN WASHER LID. 3. UNPLUG THE WASHER.

WARNING

THIS MACHINE MANUFACTURED

FAILURE TO INSTALL, MAINTAIN, AND/OR

UNDER ONE OR MORE OF THE FOLLOWING PATENTS:

OPERATE THIS MACHINE ACCORDING TO

UNITED STATES NO: 3,253,874;

MANUFACTURER'S INSTRUCTIONS MAY

3,838,755; 3,845,642

RESULT IN CONDITIONS WHICH CAN

CANADIAN NO: 1,008,265;

PRODUCE BODILY INJURY AND/OR

83 86 89 92 95 98 01 04 07 10 13 16 19 22 25 SH

83 86 89 92 95 98 101 104 107 110 113 116 119 122 125 TEMPS > 195°F

6. TO EXIT THIS ROUTINE PRESS ANY PAD OR UNPLUG THE MACHINE.

994,685

PROPERTY DAMAGE.

TEMPS < 10°F 35 38 41 44 47 50 53 56 59 62 65 68 71 74 77 80

OTHER PATENTS PENDING

PART NO. 40102003

ACTIVE LEDS, STATUS WORDS, AND ICONS

TIME DISPLAY 00

MOTOR DIRECTION

MOTOR RELAY

HOT WATER

COLD WATER

SIGNAL

ALL

HIGH AGITATE

K1

OFF

OFF

OFF

05

NONE

HIGH AGITATE

K1

ON

ON

OFF

10

ALL

OFF

OFF

OFF

OFF

15

NONE

MED AGITATE

K1,K2,K7

ON

ON

OFF

20

ALL

MED AGITATE

K1,K2,K7

OFF

OFF

OFF

25

NONE

OFF

ON

ON

OFF

30

ALL

LOW AGITATE

K1,K2

OFF

OFF

OFF

35

NONE

LOW AGITATE

K1,K2

ON

ON

OFF

NONE

OFF

OFF

OFF

OFF

K1,K3

ON

ON

OFF

40

ALL

NONE

NONE

45

NONE

HIGH SPIN

50

ALL

HIGH SPIN

K1,K3

OFF

OFF

OFF

55

NONE

NONE

OFF

ON

ON

OFF

60

ALL

MED SPIN

K1,K2,K3,K7

OFF

OFF

OFF

65

NONE

MED SPIN

K1,K2,K3,K7

ON

ON

OFF

70

ALL

NONE

OFF

OFF

OFF

OFF

75

NONE

LOW SPIN

K1,K2,K3

ON

ON

OFF

80

ALL

LOW SPIN

K1,K2,K3

OFF

OFF

OFF

85

NONE

NONE

OFF

ON

ON

LOW

90

ALL

NONE

OFF

OFF

OFF

MED

95

NONE

NONE

OFF

ON

ON

HIGH

RT3100012 Rev. 1

8

April 2001